A student was asked how many grams of H,O would be produced from 12.85 g of CaCN,. They were provided with the balanced equation and reaction map shown. Explain why their solution below is incorrect and where their mistake(s) is. Then correct the error and solve. CACN2 (s) + 3 H,O (I) → 2 NH3 (g) + CaCO; (s) Grams of Grams Milliliters Grams of CACN2 of H2O of NH3 CaCO3 3 mol H2O 2 mol NH3 1 mol CACO; Moles of Moles of Moles of Moles of 1 mol CaCN2 3 mol H;O 2 mol NH3 CACN2 (s) H;O (I) NH3 (g) CACO, (s) Here is the student's solution: 1 mol CaCN2 92.11 g CaCN, ^ 18.02 g H20 1 mol H20 12.85 g CaCN2 x; 0.0077 g H20 I mol CaCO; 100.09 g CACO; 0.000045 mol NH3 I milliliter I mol H2O 18.02 g H;0 I mol CaCN2 92.11 g CACN2

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A student was asked how many
grams of H,O would be produced
from 12.85 g of CaCN,. They were
provided with the balanced equation
and reaction map shown. Explain why
their solution below is incorrect and
where their mistake(s) is. Then
correct the error and solve.
CACN2 (s) + 3 H2O (1) → 2 NH3 (g) + CaCO3 (s)
Grams of
Grams
Milliliters
Grams of
CACN2
of H2O
of NH3
СаСО
3 mol H2O
2 mol NH3
1 mol CaCO3
Moles of
Moles of
Moles of
Moles of
1 mol CACN2
3 mol H;0
2 mol NH3
CACN2 (s)
H2O (I)
NH3 (g)
CACO3 (s)
Here is the student's solution:
1 mol CaCN2
1 mol H20
12.85 g CaCN2 X
= 0.0077 g H20
92.11 g CaCN2
18.02 g H20
1 mol CACO;
100.09 g CaCO3
0.000045 mol NH3
I milliliter
1 mol H2O
18.02 g H2O
1 mol CACN2
92.11 g CaCN2
Transcribed Image Text:A student was asked how many grams of H,O would be produced from 12.85 g of CaCN,. They were provided with the balanced equation and reaction map shown. Explain why their solution below is incorrect and where their mistake(s) is. Then correct the error and solve. CACN2 (s) + 3 H2O (1) → 2 NH3 (g) + CaCO3 (s) Grams of Grams Milliliters Grams of CACN2 of H2O of NH3 СаСО 3 mol H2O 2 mol NH3 1 mol CaCO3 Moles of Moles of Moles of Moles of 1 mol CACN2 3 mol H;0 2 mol NH3 CACN2 (s) H2O (I) NH3 (g) CACO3 (s) Here is the student's solution: 1 mol CaCN2 1 mol H20 12.85 g CaCN2 X = 0.0077 g H20 92.11 g CaCN2 18.02 g H20 1 mol CACO; 100.09 g CaCO3 0.000045 mol NH3 I milliliter 1 mol H2O 18.02 g H2O 1 mol CACN2 92.11 g CaCN2
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